On 02/18/2013 09:50 PM, Chris Murphy wrote:
On Feb 18, 2013, at 7:20 PM, Digimer <lists@xxxxxxxxxx> wrote:
Two days ago, I reinstalled F18 on my Corsair drive. I had the Samsung connected as a USB drive to restore my files and after a few hours, the system locked up again ('tail -n 100' below). I pulled the Samsung out of the laptop and booted with just the Corsair and it's been rock solid since.
I assume you've looked at smartctl -a on this drive, and that's why you don't think it's just a bad SSD that needs to be swapped out for replacement? I'm using an 830, which is related to the 840, but admittedly different in some important ways; but I'm not experiencing problems like you're describing.
And what have you found in dmesg for the time this is happening? Or 'journalctl --follow' using ssh?
Each time it crashed, it *looked* like a dbus hang-up.
Why do you say this? There's nothing in your syslog that implicates dbus, or anything else for that matter. I also think that's the wrong diagnostic tool for this, actually.
Chris Murphy
I went so far as to install Windows 7 on the 840 Pro, downloaded and ran
Samsung's own tool to verify it was at the latest firmware and was
healthy. The smartctl is below.
Next time it crashes, I will check dmesg and run that command.
If it's not dbus, which I readily admitted it might not be :), I would
love to hear suggestions. The reason I thought it was related to dbus
was that I kept seeing so many dbus messages at the time of each crash.
Also, restarting the dbus.service would (all but one time) recover Gnome
and restore the system to working. Of course, that could be normal and
unrelated.
Again, I am open to advice or suggestions.
==============
[root@localhost digimer]# smartctl -a /dev/sda
smartctl 6.0 2012-10-10 r3643 [x86_64-linux-3.6.10-4.fc18.x86_64] (local
build)
Copyright (C) 2002-12, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Device Model: Samsung SSD 840 PRO Series
Serial Number: S12RNEACC95023M
LU WWN Device Id: 5 002538 55015d61e
Firmware Version: DXM04B0Q
User Capacity: 256,060,514,304 bytes [256 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: ACS-2, ATA8-ACS T13/1699-D revision 4c
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Mon Feb 18 22:43:47 2013 EST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine
completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (53956) seconds.
Offline data collection
capabilities: (0x53) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
No Offline surface scan supported.
Self-test supported.
No Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 20) minutes.
SCT capabilities: (0x003d) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE
UPDATED WHEN_FAILED RAW_VALUE
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail
Always - 0
9 Power_On_Hours 0x0032 099 099 000 Old_age
Always - 88
12 Power_Cycle_Count 0x0032 099 099 000 Old_age
Always - 53
177 Wear_Leveling_Count 0x0013 099 099 000 Pre-fail Always
- 3
179 Used_Rsvd_Blk_Cnt_Tot 0x0013 100 100 010 Pre-fail Always
- 0
181 Program_Fail_Cnt_Total 0x0032 100 100 010 Old_age Always
- 0
182 Erase_Fail_Count_Total 0x0032 100 100 010 Old_age Always
- 0
183 Runtime_Bad_Block 0x0013 100 100 010 Pre-fail Always
- 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always
- 0
190 Airflow_Temperature_Cel 0x0032 066 059 000 Old_age Always
- 34
195 Hardware_ECC_Recovered 0x001a 200 200 000 Old_age Always
- 0
199 UDMA_CRC_Error_Count 0x003e 100 100 000 Old_age Always
- 0
235 Unknown_Attribute 0x0012 099 099 000 Old_age Always
- 6
241 Total_LBAs_Written 0x0032 099 099 000 Old_age Always
- 1152161247
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
255 0 65535 Read_scanning was never started
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
==============
--
Digimer
Papers and Projects: https://alteeve.ca/w/
What if the cure for cancer is trapped in the mind of a person without
access to education?
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